I made this ring to fit a food dehydrator I bought to dry filament. There are other good files out there but I wanted to make my own, and be sure it fit my model exactly. This is the one I have:
There are several other makes that appear to be identical, I think perhaps including the Fil-a-dry. But I am not sure. The inner lip that sits down in the dehydrator or tray of the dehydrator is 12.28", so if yours is the same, it should fit! The ring is about 3.25" high which is a bit higher than the widest roll of filament I had on hand when i designed it. If you want to dry two at once, just print two rings.
The 90degree slice will fit on a printer with about 290mm of print area. The 45 slice should print on smaller machines. You'll need 4 of the 90s, or 8 of the 45s to make a complete ring. There is a tab used for alignment, clamping and gluing the ring sections together, or you can just tape them so it can be collapsed for storage.
As you can see in the photo, i use mine with a single tray from the dehydrator (and the lid of course). This keeps the spool off the heating element. The nice thing is, none of the trays or lid get modified, so you can still use the machine to dry food!
I printed mine out of transparent red PETG, figuring PETG would be better for temp resistance. I used 4 walls, 4 tops and 4 bottoms with no infill. It is plenty strong even with the machine on its warmest setting. I also used .3mm layer heights as its saves time and this print only needs to be functional, not smooth.
I hope it works for you!
You'll need a brim at least for bed adhesion as the part has a very small footprint on the bed and is quite tall. It also helps to add supports to get a good clean bottom on the lip, which is what the part spends most of its functional time sitting on.
You can either glue the ring together using the tabs provided in the model, or place clear packing tape over the outside and inside of the joints. I used tape in the image shown above, because it can be collapsed for storage that way. If yours will be permanent, go ahead and glue them.